<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>视口-自适应</title>
</head>

<body>
  适应视口：
  <button class="fitView">tl</button>
  <button class="fitView">tc</button>
  <button class="fitView">tr</button>
  <button class="fitView">cc</button>
  <button class="fitView">lc</button>
  <button class="fitView">rc</button>
  <button class="fitView">bl</button>
  <button class="fitView">bc</button>
  <button class="fitView">br</button>
  <button class="fitView">autoZoom</button>
  <div id="mountNode"></div>
  <script src="../build/g6.js"></script>
  <script>
    const data = {
      nodes: [{
        id: 'node1',
        x: 100,
        y: 200
      }, {
        id: 'node2',
        x: 300,
        y: 200
      }],
      edges: [{
        id: 'edge1',
        target: 'node2',
        source: 'node1'
      }]
    };
    const graph = new G6.Graph({
      container: 'mountNode',
      fitView: 'cc',
      height: window.innerHeight,
      fitView: 'cc'
    });
    graph.read(data);
    const buttons = document.getElementsByClassName('fitView');
    for (let index = 0; index < buttons.length; index++) {
      const button = buttons[index];
      button.onclick = () => {
        graph.setFitView(button.innerHTML);
      };
    }
  </script>
</body>
</html>
